Luyện ngữ pháp - Destination C1 and C2 (Unit 11: Grammar - Conditionals))


Inverted conditionals
More formal form of the first conditional
(with should)		 Should the drought continue, many people will be forced to leave their villages.
(= If the drought should continue ... I If the drought continues ... )
More formal form of the second conditional Were we to stop using fossil fuels tomorrow, it would still take decades for the planet to recover. (= If we were to stop ... I If we stopped ... )
More formal form of the third conditional Had Charles Darwin not visited the Galapagos Islands, he might never have developed his theory of evolution. ( = If Charles Darwin hadn't visited ... )

Watch out!

• When the verb to be inverted is negative, we put not after the subject.
✓ Had we not attended the meeting, we would have had no idea of the council's plans.

• When the if clause comes before the result clause. we usually separate the two clauses with a comma. When the result clause comes first, we do not use a comma.
✓ If you share a car to work, you can save on energy.
✓ You can save on energy if you share a car to work.

Form - Mixed conditionals Form - Other conditional structures


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